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Finding the Fourth Proportional to 70,419.54, 105,632.55 and 26,038.02

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Solution

The fourth proportional to 70,419.54, 105,632.55 and 26,038.02 is: 39,058.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,419.54 : 105,632.55 = 26,038.02 : x
  2. Step 2: Convert to fraction form
    70,419.54/105,632.55 = 26,038.02/x
  3. Step 3: Cross multiply
    70,419.54x = 105,632.55 × 26,038.02
  4. Step 4: Simplify right side
    70,419.54x = 2,750,462,449.55
  5. Step 5: Solve for x
    x = 2,750,462,449.55/70,419.54
  6. Step 6: Final answer
    x = 39,058.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.